How To Clean Bronze Headstone. Even a stone as hard as granite can sustain additional damage if you clean it. While the darkened finish look adds character to the metal, chances are, you will want your loved one’s headstone plaque or urn to be clean and shiny.
Clean it once every 18 months. Use medium pressure and a soft, lint free cloth along with soap and clean water for best results. This will help get rid of any stubborn stains or grease.
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Spraying down the headstone first will help maximize the effectiveness of the cleaning solution. Proceed by removing any debris on or around the bronze memorial. Look for stress cracks on the stone. What not to do when cleaning a headstone